Fix misc-unused-using-decls clang-tidy warning am: a669de72d3 am: fe8b5592ae

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2746183

Change-Id: Ifc03672bdc6fdc30ff62db90c54d2b2549f26b97
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>